Operation Condor
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چکیده
منابع مشابه
The Condor
Intensive study of certain phases of the habits of the Red-tailed Hawk (Buteo jamaicensis) was made by the writers at the San Joaquin Experimental Range in the foothills of Madera County, California, during 1939, 1940, and the early part of 1941. This wide-ranging, common, and important raptor is well known through such detailed studies as those of McAtee ( 1935)) Bent ( 1937)) and Sumner (1929...
متن کاملThe Condor
We studied the effects of observer variability when estimating vegetation characteristics at 75 0.04-ha bird plots. Observer estimates were significantly different for 31 of 49 variables. Multivariate analyses showed significant interobserver differences for five of the seven classes of variables studied. Variable classes included the height, number, and diameter of trees, height to the first l...
متن کاملThe Condor
The remarkable Cretaceous birds with teeth, widel; cited in paleontological and biological literature as an intermediate evolutionary stage between reptiles and modern birds, are known almost exclusively from the monograph “Odontornithes” and a few preliminary publications by 0. C. Marsh, their discoverer. Marsh’s reconstructions have been copied extensively and formed the basis for discussions...
متن کاملThe Condor
There is probably more ignorance concerning pair-formation than there is of any other aspect of bird behavior. This paper attempts to summarize existing knowledge on this subject in order to stimulate further work. I am greatly indebted to Dr. Ernst Mayr and Dr. G. Kingsley Noble for their stimulating discussions with me, and to Dr. Alden H. Miller for seeing the paper through the press, an und...
متن کاملCondor and the Grid
Ready access to large amounts of computing power has been a persistent goal of computer scientists for decades. Since the 1960s, visions of computing utilities as pervasive and as simple as the telephone have motivated system designers [1]. It was recognized in the 1970s that such power could be achieved inexpensively with collections of small devices rather than expensive single supercomputers...
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ژورنال
عنوان ژورنال: Chemical & Engineering News Archive
سال: 1953
ISSN: 0009-2347,2157-4936
DOI: 10.1021/cen-v031n039.p3955